To insert data into MongoDB collection, you need to use MongoDB's insert() or save()method.
Basic syntax of insert() command is as follows:
db.COLLECTION_NAME.insert(document)
To query data from MongoDB collection, you need to use MongoDB's find() method.
Basic syntax of find() method is as follows
db.COLLECTION_NAME.find()
To display the results in a pretty way, you can use pretty() method.
SYNTAX:
db.mycol.find().pretty()
Apart from find() method there is findOne() method, that reruns only one document.